Provision of Centralized Chilled water systems to Academic buildings in IIT Madras Sub Head Provision of Chillers pumps Cooling towers and piping works in trenches

Amount

Chiller Package

The chiller package offered shall be from a reputed Chiller OEM who has been carrying out the business of supplying and servicing chillers in India for at least the past 10 years. The OEM shall have an installation base of at least 100000TR of Chiller Units in India and installed and commisioned at least 10000TR of Chiller Units in the past one year. The Chiller OEM shall also have their office premises and their own Service Set up in Chennai with at least 4 qualified technicians. A warehouse of the OEM stocking all essential spare parts in Chennai is also mandatory.

All the Chillers will be sourced from the same OEM.

A confirmation letter from the OEM that they are willing to Supply, Commission, Provide warranty support and undertake AMC for the Chiller sourced through the HVAC Contractor is required.

The OEM shall have a Centralised Remote Monitoring Centre to which the Chiller Plant & Chiller Plant Manager can be hooked up through internet to allow for remote monitoring, troubleshooting, maintenance scheduling, carryout predictive analysis, carryout energy optimisation and analytics.

Water Cooled Centrifugal Chiller-

Supply of Centrifugal Type Water-cooled Chiller Units as per specifications comprising of following, fully assembled at factory on a compact skid: a. Semi-Hermetic, fully field serviceable centrifugal compressor alongwith motor, gear assembly etc., Motor shall be suitable for 415V+10%V, 50Hz, 4 Wire. b.Flow Control Inlet vanes, Oil Pump etc., c. Shell and Tube type Condenser (2 Pass) d. Shell and Tube type Evaporator (flooded type) e. Electronic refrigerant flow control valve, Interconnecting pipework, sensors, safety cutouts etc., f. Unit Mounted / Floor Standing VFD for smooth startup and capacity modulation with filters to limit the THDi levels to less than 5%. The VFD shall be cooled by air only. Refrigerant or Watercooled VFD's are not acceptable. g. Electrical control panel with Isolator, contactors, relays etc., h. Refrigerant and safety controls sensors i. All necessary power and control cabling in the electrical panel and between panel, VFD and Compressor (incoming power would be made available only at the isolator in electrical panel of each chiller by client - Entire unit to be suitable for 415+10%V, 50Hz,4 Wire) j. Complete refrigerant charge k. Microprocessor control panel with backlit LCD/LED display for easy menu driven operation of chiller and control of chiller. Chiller shall have suitable interface / cards to enable the Chiller to be integrated with a BMS on BACNET over IP. The microprocessor panel shall also be compatible with the Chiller Plant Manager of the OEM.

Refrigerant shall be R134a

Chiller Inlet and Outlet Water Conditions to be considered as 14 deg C and 6.5 deg C respectively.

Condenser Inlet Water Temperature to be considered as 32.2 deg C. Maximum Condenser flow permissible would be 3.5USGPM/TR of capacity delivered.

Fouling Factors for Condenser and Evaporator to be considered as 0.001 and 0.0005 Sft-F-Hr/BTU respectively.

Chiller shall be capable of operating at any load condition between 30% to 100% at the above mentioned Condenser in, Evaporator Out and fouling factor conditions.

The Chiller shall be capable of operating down to at least 40% at an enhanced condenser water entry condition of upto 35 deg C with the Chiller outlet and fouling factors as per above conditions.

In case vendor is offering chillers in odd pass configuration, water box to be provided which would allow for descaling of tubes without removal of pipework.

Chillers will have to meet or exceed ASHRAE 90.1 energy efficiency requirements for both full load and IPLV values.

Chillers will also have to meet or exceed ECBC 2017 requirement for IPLV as applicable for ECBC+ at AHRI conditiions.

Note: Apart from input power alongwith earthing at breaker in electrical panel of each chiller, no other provision would be provided by Client. Any UPS power for control panel or oil pump would not be provided by Client and the same to be provided by vendor if required.

Supply of Centrifugal Water Cooled Chiller Packages at site including all import duties, other levies(excl GST), transport to site, insurance(till commissioning & handover)– 800TR capacity at above mentioned conditions.

Unloading of Chillers at site, Shifting them to location in the Plantroom at ground level and positioning them.

Cushy foot mountings for vibration isolation.

SITC of flow switches for condenser water , chilled water in the respective pipework and wiring them to the chiller control panel.

Carrying Out Factory performance test in an AHRI certified test bed by simulating actual tender conditions for 25%, 50%, 75% & 100% Loads for one of the Chillers that would be supplied to the Client. Test would also include operating the chiller at the limits of load(ie 30% at tender condenser water entry and 40% at enhanced condenser water entry). Note: Chiller shall be factory tested with the same VFD that would be supplied as part of the package and not any other VFD.

Charges for arranging for factory visit for client nominated personnel to witness performance test. Charges to include to-and-fro travel charges from Chennai, Travel insurance, Visa fees, Documentation charges, Boarding & Lodging, all incidental expenses etc.,for 3 persons for witnessing chiller test as mentioned above in Item No.5

Installation, Commissioning of Chillers ( including pressure test, evacuation as required and refrigerant charging) and run testing them for a period of 72 hours continuously and training Client's operation and maintenance staff.

Water Cooled Screw Chiller

Supply of Water-cooled Screw Chiller Units as per specifications comprising of the following, fully assembled at factory on a compact skid: a. Semi-Hermetic, fully field serviceable screw compressors (minimum 2 per chiller) alongwith motor, gear assembly etc., Motor shall be suitable for 415V+10%V, 50Hz, 4 Wire.Twin compressor Chiller units are preferred. b. Shell and Tube type Condenser (2 Pass) c. Shell and Tube type Evaporator (flooded type) d. Electronic refrigerant flow control valve, Interconnecting pipework, sensors, safety cutouts etc., e. Unit Mounted / Floor Standing VFD for smooth startup and capacity modulation with filters to limit the THDi levels to less than 5%. The VFD shall be cooled by air only. Refrigerant or Watercooled VFD's are not acceptable. f. Electrical control panel with Isolator, contactors, relays etc., g. Refrigerant and safety controls sensors h. All necessary power and control cabling in the electrical panel and between panel, VFD and Compressor (incoming power would be made available only at the isolator in electrical panel of each chiller by client - Entire unit to be suitable for 415+10%V, 50Hz,4 Wire) i. Complete refrigerant charge j. Microprocessor control panel with backlit LCD/LED display for easy menu driven operation of chiller and control of chiller. Chiller shall have suitable interface / cards to enable the Chiller to be integrated with a BMS on BACNET over IP. The microprocessor panel shall also be compatible with the Chiller Plant Manager of the OEM.

Refrigerant shall be R134a

Chiller Inlet and Outlet Water Conditions to be considered as 14 deg C and 6.5 deg C respectively.

Condenser Inlet Water Temperature to be considered as 32.2 deg C. Maximum Condenser flow permissible would be 3.5USGPM/TR of capacity delivered.

Fouling Factors for Condenser and Evaporator to be considered as 0.001 and 0.0005 Sft-F-Hr/BTU respectively.

Chiller shall be capable of operating at any load condition between 25% to 100% at the above mentioned Condenser in, Evaporator Out and fouling factor conditions.

Chiller shall be able to operate without cycling cooling tower fan or varying the condenser water flow even when the condenser water entry temperature drops down to 22deg C and chilled water entry condition is at 15 deg C without any issues of compressor lubrication.

In case vendor is offering chillers in odd pass configuration, water box to be provided which would allow for descaling of tubes without removal of pipework.

Chillers will have to meet or exceed ASHRAE 90.1 energy efficiency requirements for both full load and IPLV values.

Chillers will also have to meet or exceed ECBC 2017 requirement for IPLV as applicable for ECBC+ at AHRI conditiions.

Note: Apart from input power alongwith earthing at breaker in electrical panel of each chiller, no other provision would be provided by Client. Any UPS power for control panel would not be provided by Client and the same to be provided by vendor if required.

Supply of Water Cooled Screw Chiller Packages at site including all import duties, other levies(excl GST), transport to site, insurance(till commissioning & handover)– 400TR capacity at above mentioned conditions.

Unloading of Chillers at site, Shifting them to location in the Plantroom in ground level and positioning them.

Cushy foot mountings for vibration isolation.

SITC of flow switches for condenser water , chilled water in the respective pipework and wiring them to the chiller control panel.

Carrying Out Factory performance test in an AHRI certified test bed by simulating actual tender conditions for 25%, 50%, 75% & 100% Loads for one of the Chillers that would be supplied to the Client. Note: Chiller shall be factory tested with the same VFD that would be supplied as part of the package and not any other VFD.

Charges for arranging for factory visit for client nominated personnel to witness performance test. Charges to include to-and-fro travel charges from Chennai, Travel insurance, Visa fees, Documentation charges, Boarding & Lodging, all incidental expenses etc.,for 3 persons for witnessing chiller test as mentioned above in Item No.5

Installation, Commissioning of Chillers ( including pressure test, evacuation as required and refrigerant charging) and run testing them for a period of 72 hours continuously and training Client's operation and maintenance staff.

Air Cooled Screw Chiller

Supply of Airr-cooled Screw Chiller Units as per specifications comprising of the following, fully assembled at factory on a compact skid: a. Semi-Hermetic, fully field serviceable screw compressors(minimum 2 nos per chiller) alongwith motor gear assembly etc., Motor shall be suitable for 415V+10%V, 50Hz, 4 Wire.Twin compressor Chiller units are preferred. b. Air Cooled Condenser with condenser fans. c. Shell and Tube type Evaporator (flooded / DX type) d. Electronic refrigerant flow control valve, Interconnecting pipework, sensors, safety cutouts etc., e. Unit Mounted / Floor Standing VFD for smooth startup and capacity modulation with filters to limit the THDi levels to less than 5%. The VFD shall be cooled by air only. Refrigerant or Watercooled VFD's are not acceptable. f. Electrical control panel with Isolator, contactors, relays etc., g. Refrigerant and safety controls sensors h. All necessary power and control cabling in the electrical panel and between panel, VFD and Compressor (incoming power would be made available only at the isolator in electrical panel of each chiller by client - Entire unit to be suitable for 415+10%V, 50Hz,4 Wire) i. Complete refrigerant charge j. Microprocessor control panel with backlit LCD/LED display for easy menu driven operation of chiller and control of chiller. Chiller shall have suitable interface / cards to enable the Chiller to be integrated with a BMS on BACNET over IP. The microprocessor panel shall also be compatible with the Chiller Plant Manager of the OEM.

Refrigerant shall be R134a

Chiller Inlet and Outlet Water Conditions to be considered as 14 deg C and 6.5 deg C respectively.

Condenser Air Inlet Temperature to be considered as 40 deg C.

Fouling Factor for Evaporator to be considered as 0.0005 Sft-F-Hr/BTU.

Chiller shall be capable of operating at any load condition between 25% to 100% at the above mentioned Condenser in, Evaporator Out and fouling factor conditions.

In case vendor is offering chillers in odd pass configuration, water box to be provided which would allow for descaling of tubes without removal of pipework.

Chillers will have to meet or exceed ASHRAE 90.1 energy efficiency requirements for both full load and IPLV values.

Chillers will also have to meet or exceed ECBC 2017 requirement for IPLV as applicable for ECBC+ at AHRI conditiions.

Note: Apart from input power alongwith earthing at breaker in electrical panel of each chiller, no other provision would be provided by Client. Any UPS power for control panel would not be provided by Client and the same to be provided by vendor if required.

Supply of Air Cooled Screw Chiller Packages at site including all import duties, other levies(excl GST), transport to site, insurance(till commissioning & handover)– 120TR capacity at above mentioned conditions.

Unloading of Chillers at site, Shifting them to location on pedestals at ground level.

Cushy foot mountings for vibration isolation.

SITC of flow switch for Chilled water in the pipework and wiring them to the chiller control panel.

Provision of acoustic treatment for the chiller. The treatment shall consist of providing acoustic jackets to compressors, providing suitable acoustic louvres in the unit/around the unit to ensure that the sound pressure level does not exceed 70dB(A) at 1m from the Chiller at any point around the Chiller.

Installation, Commissioning of Chillers ( including pressure test, evacuation as required and refrigerant charging) and run testing them for a period of 72 hours continuously and training Client's operation and maintenance staff.

Chiller Plant Manager

Chiller Plant Manager shall consist of programmable Controller/s, DDC Controllers networked to all the chillers and its peripherals and shall be able to control, modulate and monitor them so as to operate them in the best energy efficiency configuration, equal run hours, equal starts etc.,. The CPM shall have an in-built web server which can be accessed through any standard web browser to view the status and control various equipments and shall be suitable for connecting with a CPM Server Software. The CPM shall also be capable of providing alarms and trends. The Chiller Plant Manager, DDC's, Sensors and Software shall be as per Specification. The Chiller Plant Manager System shall be capable of being connected to a Centralised Remote Monitoring Centre of the OEM to monitor, analyse, troubleshoot and carryout predictive analysis of HVAC system. (This option may be exercised by the Client at a later date and hence the capability should exist in the system)

SITC of Chiller Plant Manager Controller/s, DDC's capable of Monitoring, Modulating and Controlling various equipments for each Parcel as per IO summary provided. Price to include all licenses, integrations as per IO summary and providing necessary GUI in the software.

SITC of Server for Hosting Chiller Plant Manager Software. Central computer system comprising of minimum Intel i7 3.3 Ghz processor, 2 x 2 TB HDD in RAID-1 Config, 64 GB RAM, Graphics Card with minimum 2 Nos Full HD outputs,Minimum 21'' LED type Capacitative Touch Screen monitor with full HD resolution, 104, 12 function key board, mouse, network adapter,multimedia speakers etc . The system shall be pre-loaded with Windows 8/10/11 Professional or latest Linux operating system suitable for the software.The server shall be powerful enough to run all applications without any observable time lag. It shall have provisions for accepting dual supply sources. It should be supported by a standalone UPS for 10min battery backup provided by the contractor. Please note that the above mentioned is the minimum configuration being suggested and vendor shall provide a system with higher specifications if it is a requirement of their software or to meet the performance requirements as called for in this tender. Price to include 2 year subscription for Microsoft Office 365 software and its installation on the system.

SITC Chiller Plant Manager Software - to be installed in Server. The Chiller Plant Manager shall be capable of connecting with the various Chiller Plant Manager Controller/s installed over various Parcels through network and provide full operation functionality for the same as per specification.

SITC of network switch/switches(no of ports to be as per vendor's requirement + 25% extra ports) and creation of an independent IP network to support the CPM system proposed. System shall work as a standalone system and may get connected to Client's network through suitable firewall (firewall will be in the scope of Client). The switch shall be with 2 Layer Semi-Managed suitable for CAT-6 cable, 10/100 with 2 Giga Combo ports. LAN & OFC cabling will be measured and paid as per item given separately in this BOQ) .The switches shall also have provisions for Optical Fibre connectivity The switches shall be mounted on a suitable wall mounted racks. Entire network shall be designed in such a way that it is able to handle all data traffic seamlessly with minimum delays as specified.

SITC of Ambient T+RH Sensor

SITC of Pipe mounted temperature sensor

SITC of Pipe mounted pressure sensor

SITC of Water level sensor (analog type - consider upto 600mm length)

SITC of Water flow meter .

Supplying, laying, termination, testing and commissioning of signal cables. (2 core 1.0 mm2), FRLS insulated, tinned copper conductor cable (screened or unscreened as per CPM OEM requirement)

Supplying, laying, termination, testing and commissioning of communication cables. (3 core 1.0 mm2), FRLS insulated, tinned copper conductor cable(screened or unscreened as per CPM OEM requirement)

Supplying, laying and fixing of MS conduits of 25mm dia / 2mm thick complete with all accessories.

Supplying, laying and fixing of MS conduits of 20mm dia / 2mm thick complete with all accessories.

Supplying, laying, termination, testing & commissioning of CAT-6 LAN cables for BMS Network including suitable Jacks, patch cables etc., Cable conductor to be of copper. Screened cable may be used as per CPM OEM requirement.

Supplying, laying, termination, testing & commissioning of Optical Fibre cables for BMS Network including suitable Jacks, terminations etc.,

Supplying, laying and fixing of GI Medium class conduits of 25mm dia complete with all accessories.

Supplying, laying and fixing of GI Medium class conduits of 40mm dia complete with all accessories.

Supply & erection of MS, 1.6mm thick, powedercoated solid full covered type cable trays . All MS supports used shall be given one coat of red oxide primer & 2 coats of synthetic enamel out door rust resistant paint of approved colour.

Size 300mm x 50mm height

Size 150mm x 50mm height

SITC of HDPE pipes, 20mm dia, PN 2.5 rating in roll form laid in trenches for DP sensor, OFC cables. All Joints shall be made water tight.

Cooling Towers

SITC of Induced Draft, Counter flow cooling tower in FRP construction with CTI certification as per specification complete with Sump, GI Hot dip framework, FRP casing, PVC fills, Drift Eliminator, high efficiency fan, fan motor, distribution pipework, spray nozzles, ladder, SS bolts and nuts , make up water with heavy duty float valve and quick fill connections , drain & equaliser connections etc., Sump capacity shall be minimum 4000 litres per tower. The location in the sump where the pump suction pipe is connected to has to be deep enough to avoid formation of vortexes or cavitation at the design flow.

Place of installation to be considered as Chennai with design ambient wet bulb temperature of 28.deg C. Outlet water temperature from cooling tower shall not be more than 32.0 deg C. Water flow rate to be considered as 1400 USGPM.

The price should include shifting to terrace, grouting to pedestals with grouting bolts etc.,

Total Heat Rejection of each Cooling Tower shall be 475TR - fan motor not to exceed 15KW

Supply of Fan motor and blades of the same model as used in the cooling tower as spare .

PUMPS

CONDENSER WATER PUMPS

SITC of water circulation pumps, Horizontal Split Casing type complete with CI casing, Stainless Steel Impeller, Stainless Steel / Alloy Steel shaft, Mechanical Seals, bearings, TEFC Squirrel cage induction Drive Motor, Direct drive coupling as per Specification. The pump and motor shall be complete with MS baseframe for mounting both pump and motor and the same shall be factory assembled in the Pump factory itself.

Drive motor shall be suitable for 415 +/- 10% V, 50 Hz and conform to IE3 efficiency norms. The motor and pump shall be suitable for operation with a VFD.

Condenser Water Pumps 1400USGPM, 28m Head, 1450 RPM, Minimum Pump Efficiency 80%, Average Water temperature 30 deg C. (1 Pump Standby in each Parcel)

PRIMARY CHILLED WATER PUMPS

SITC of water circulation pumps, Back Pull Out, End Suction type, long coupled, complete with CI casing, Stainless Steel Impeller, Stainless Steel / Alloy Steel shaft, Mechanical Seals, bearings, TEFC Squirrel cage induction Drive Motor, Direct drive coupling as per Specification. The pump and motor shall be complete with MS baseframe for mounting both pump and motor and the same shall be factory assembled in the Pump factory itself. Construction, assembly and coupling shall be provided in a manner that would facilitate removal of pump impeller and shaft without moving the motor.

Drive motor shall be suitable for 415 +/- 10% V, 50 Hz and conform to IE3 efficiency norms. The motor and pump shall be suitable for operation with a VFD.

Pumps shall be provided with minimum 50mm thick PUF and 24G aluminium cladding. Insulation shall be carried out in such a way that the insulation can be removed in case of any maintenance on pumps and put back easily without damaging the insulation.

Primary Chilled Water Pump for WC Chillers - 720 USGPM, 20m Head, 1450 RPM, Minimum Pump Efficiency 75%, Average Water temperature 10 deg C.

Primary Chilled Water Pump for WC Chillers - 720 USGPM, 20m Head, 1450 RPM, Minimum Pump Efficiency 75%, Average Water temperature 10 deg C.

Primary Chilled Water Pump for Air Cooled Chillers (Night Operation)- 216 USGPM, 20m Head, 2900 RPM, Minimum Pump Efficiency 70%, Average Water temperature 10 deg C.

SECONDARY CHILLED WATER PUMPS

SITC of water circulation pumps, Back Pull Out, End Suction type, long coupled, complete with CI casing, Stainless Steel Impeller, Stainless Steel / Alloy Steel shaft, Mechanical Seals, bearings, TEFC Squirrel cage induction Drive Motor, Direct drive coupling as per Specification. The pump and motor shall be complete with MS baseframe for mounting both pump and motor and the same shall be factory assembled in the Pump factory itself. Construction, assembly and coupling shall be provided in a manner that would facilitate removal of pump impeller and shaft without moving the motor.

Drive motor shall be suitable for 415 +/- 10% V, 50 Hz and conform to IE3 efficiency norms. The motor and pump shall be suitable for operation with a VFD.

Pumps shall be provided with minimum 50mm thick PUF and 24G aluminium cladding. Insulation shall be carried out in such a way that the insulation can be removed in case of any maintenance on pumps and put back easily without damaging the insulation.

Secondary Chilled Water Pump for Parcel 1 - 1080 USGPM, 30m Head, 1450 RPM, Minimum Pump Efficiency 80%, Average Water temperature 10 deg C.

Secondary Chilled Water Pump for Parcel 2 - 900 USGPM, 30m Head, 1450 RPM, Minimum Pump Efficiency 80%, Average Water temperature 10 deg C.

Secondary Chilled Water Pump for Parcel 3 - 630 USGPM, 30m Head, 1450 RPM, Minimum Pump Efficiency 80%, Average Water temperature 10 deg C.

Secondary Chilled Water Pump for Parcel 4 - 720 USGPM, 30m Head, 1450 RPM, Minimum Pump Efficiency 80%, Average Water temperature 10 deg C.

Secondary Chilled Water Pump for Night Operation in each Parcels 1 & 3 - 432 USGPM, 30m Head, 2900 RPM, Minimum Pump Efficiency 70%, Average Water temperature 10 deg C.

Secondary Chilled Water Pump for Night Operation in each Parcel 2 - 216USGPM, 30m Head, 2900 RPM, Minimum Pump Efficiency 70%, Average Water temperature 10 deg C.

Piping & Valves

CONDENSER WATER PIPING

SITC of Condenser water piping with MS ERW pipes in welded construction complete with all fittings, flanges, support etc., as per specification and protected against corrosion with Hot Dip Galvanisation. Entire piping work to be done in such a way with flanges at all appropriate locations such that entire piping can be either pre-fabricated at factory / carried out at site & disassembled. The pipework fabricated shall then be hot dip galvanised as per specification. After Hot Dip Galvanisation, the pipework shall be assembled at site using flanged joints without resorting to any sort of further welding works / cutting works. Cost to include all associated costs for transportation, assembly, disassembly, re assembly, loading, unloading etc.,

500mm dia, 11mm thick as per IS3589

400mm dia, 8.8mm thick as per IS3589

300mm dia NB, 7.1mm thick as per IS3589

250mm dia NB, 6.3mm thick as per IS3589

150mm dia NB, Class C as per IS1239

100 mm dia NB, Class C as per IS1239

80mm dia NB, Class C as per IS1239

50mm dia NB, Class C as per IS1239

CHILLED WATER PIPING - PLANT ROOM AREA

SITC of Insulated Chilled water piping for Chiller Plant Room Area in welded construction with MS ERW pipes complete with all fittings, flanges, PUF saddle suppors, clamps, pressure testing, Insulation with PUF pipe sections & slabs and finished with 300G Polythene sheets, 26G Aluminium cladding as per specification. Pipes 150mm dia and below shall be C class as per IS1239.

350mm dia, 8.0mm thick as per IS3589. Insulation thickness 100mm

300mm dia NB, 7.1mm thick as per IS3589. Insulation Thickness 75mm

250mm dia NB, 6.3mm thick as per IS3589 - Insulation Thickness 75mm

200mm dia NB, 6.3mm thick as per IS3589 - Insulation Thickness 75mm

150mm dia NB - Insulation Thickness 50mm

125mm dia NB - Insulation Thickness 50mm

100mm dia NB - Insulation Thickness 40mm

25mm dia NB - Insulation Thickness 30mm

CHILLED WATER PIPING - BURIED PIPEWORK

SITC of Pre Insulated Chilled water piping buried in earth in welded construction with MS ERW pipes with factory made HDPE jacketed PUF insulation complete with all fittings, flanges, pressure testing as per specification. Pipes 150mm dia and below shall be C class as per IS1239. Entire pipelength to be provided with leak detection tape with suitable connectors. Price for detection tape to include tape, all connectors, T-Joints and any other joints as required.All joints of HDPE pipes to be suitably welded with HDPE welding.Cost to include concrete pedestals with required foundation at regular intervals in trenches, clamping the pipes onto concrete pedestals with U clamps. ( clamping to be done over the HDPE sleeves)

300mm dia, 7.1mm thick as per IS3589 - HDPE jacket 560mm dia

250mm dia, 6.3mm thick as per IS3589 - HDPE jacket 500mm dia

200mm dia , 6.3mm thick as per IS3589 - HDPE jacket 400mm dia

150mm dia - HDPE jacket 315mm dia

125mm dia - HDPE jacket 280mm dia

100mm dia - HDPE jacket 225mm dia

80mm dia NB - HDPE jacket 200mm dia

MOTORISED BUTTERFLY VALVES

SITC of Motorised Butterfly valves PN 10 rating complete with (Push Button for ON/OFF arrangement & ON /OFF valve indications - BMS Compatible) companion flanges, nuts, bolts, gaskets etc. as specified. These valves shall be designed to fit without gaskets between mating flanges. The valves shall be suitable for flow in either direction and seal in both directions. The valves shall be of integral moulded design. Actuator shall operate on 230V AC supply and have potential free contacts for status monitoring.The price shall include necessary control wiring etc. Insulation shall be as per the connected chilled water piping. It shall be possible to dismount the motor assembly easily and operate the valve stem manually if required. Wherever insulation of valve is specified, the valve shall be with extended stem.

300mm dia

250mm dia

150mm dia

125mm dia

80mm dia

250mm dia with insulation

200mm dia with insulation

100mm dia with insulation

BUTTERFLY VALVES

SITC of Butterfly valves with flow control lever, PN 10 rating complete with companion flanges, nuts, bolts, etc. as per specification. These valves shall be designed to fit without gaskets between mating flanges.Insulation shall be as per the connected chilled water piping and included in cost. Valves 200mm and larger shall be equipped with gear arrangement for operation. Wherever insulation is specified, the valve shall be with extended stem.

300mm dia

250mm dia

150mm dia

50mm dia

40mm dia

350mm dia with insulation

300mm dia with insulation

250mm dia with insulation

200mm dia with insulation

150mm dia with insulation

125mm dia with insulation

100mm dia with insulation

40mm dia with insulation

BALL VALVES

SITC of ball valves complete with heavy duty PN 10 carbon steel body, stainless steel ball and shaft etc. Insulation shall be as per the connected chilled water piping.

25mm dia

25mm dia with insulation

20mm dia with insulation

BALANCING VALVES

SITC of PN10 Rating Balancing valves complete with companion flanges, nuts, bolts, gaskets and probes for pressure measurement complete with pressure readout points etc., as per specification. Insulation shall be as per the connected chilled water piping.

300mm dia

250mm dia

250mm dia with insulation

200mm dia with insulation

150mm dia with insulation

125mm dia with insulation

100mm dia with insulation

80mm dia with insulation

CHECK VALVES

SITC of PN 10 rating Dual plate type check valve with matching flanges, bolts, nuts as per the specification. Insulation shall be as per the connected chilled water piping.

250mm dia

200mm dia with insulation

150mm dia with insulation

125mm dia with insulation

100mm dia with insulation

Y STRAINERS

SITC of MS fabricated "Y" type strainers with removable type bronze screen with 3mm perforation & permanent magent etc. Insulation shall be as per the connected chilled water piping. Strainers shall be rated for 10kg/sqcm pressure.

250mm dia

200mm dia with insulation

150mm dia with insulation

125mm dia with insulation

100mm dia with insulation

FLEXIBLE BELLOWS

SITC of flexible steel wire reinforced rubber bellows with matching flanges, stud rod, bolts nuts, gaskets etc.,.suitable for PN16 rating. These flexible couplings are to be installed at connections to equipments such as chillers, pumps and cooling towers. Insulation shall be carried out as per connected chilled water piping.

300mm dia

250mm dia

250mm dia with insulation

200mm dia with insulation

150mm dia with insulation

125mm dia with insulation

100mm dia with insulation

GATE VALVES - IN VALVE CHAMBERS

SITC of Gate valves suitable for pressure rating of at least 10 Bar with matching flanges, bolts, nuts, gaskets etc., as per specification. The Gate valve shall be provided with gear wheel for easy operation.

350mm dia with insulation

250mm dia with insulation

200mm dia with insulation

150mm dia with insulation

125mm dia with insulation

100mm dia with insulation

80mm dia with insulation

Construction of valve chamber with brick masonry wall on 4 sides after PCC and covered the valve chamber with SFRC cover of suitable size as required. The charges inclusive of earth work excavation, back filling, consolidation as required.

EXPANSION TANK

SITC of Closed expansion tank as per the specification complete with 2 Nos booster pumps, pressure switches, isolation valves, check valves, accessories and insulation as per the connected chilled water piping - with 2 x 2000 litres tank. All of the above to be mounted on a compact skid by the OEM of pressurised expansion tank from factory.

AIR SEPERATOR

SITC of Centrifugal air separator cylindrical type with tangential inlet and tangential outlet. The air seperator shall be designed for minimum pressure drop and shall be capable of handling pressures upto 10 bar. The air seperator shall be of MS construction with stainless steel air collection tube and high capacity air vent.

350mm dia

300mm dia

250mm dia

BTU METER

Supply, Installation, Testing and Commissioning of BMS Compatible (should release open protocol such as BACnet, Modbus, Lonworks etc) Ultrasonic type BTU meter complete with necessary field devices such as immersion type temperature sensors and wiring etc.Device shall have suitable LCD display for displaying parameters such as instantaneous flow, load and overall BTU reading. BTU meter shall be capable of functioning independently of the BMS also.The median flow rates are as under:

2800 USGPM

2400 USGPM

1800 USGPM

PRESSURE GAUGES

SITC of 150mm dial type liquid filled pressure gauges as per specification with 2 nos. isolation valves as per drawing enclosed.

THERMOMETERS

SITC of 100mm dial type thermometer with capillary and bulb as per specification. The thermometer shall be fixed to the pipework with suitable supports.

AIR VENTS, THERMOWELLS, TEST POINTS

SITC of PN 10 Rating Automatic Air vents - 20mm dia

SITC of Thermowells in pipework as shown in drawing enclosed.

SITC of PN 10 Rating Binder Test Points

Supply of portable digital type Thermometers to work with test points

Supply of portable pressure gauge, 100mm dial to work with test points

FLUSHING & CHEMICAL CLEANING OF PIPING

Flushing of pipeworkt by repeatedly filling the pipework with water, circulating them using temporary pumps and draining them at the lowest points till the water is fully clear. Thereafter, Chemical cleaning and passivation of piping to be carried out. Both flushing and Chemical cleaning to be done with bypass loop at Chillers, Pumps, Cooling Towers etc., and temporary drain provisions at bottom of pipework at multiple points and cost to include for these provisions. Required water supply for these activities to be arranged by the vendor themselves.

CHEMICAL DOSING

SITC of Automatic Chemical Dosing System for condenser water consisting of 100 litre tanks out of HDPE each for a)Corrosion and scale inhibition chemicals b) Algaecides & Biocide chemicals and c)pH adjuster chemicals alongwith dosing pumps. The pumps are controlled by an 'Online Detection, Monitoring & Control System' which has inbuilt pH meter, ORP meter, Conductivity meter, Flourometer and uses these measured values to control the dosing pumps. System shall be as per specification.

SITC of Automatic Chemical Dosing System for chilled water consisting of 100 litre tanks each for a)Corrosion and scale inhibition chemicals and b)pH adjuster chemicals alongwith dosing pumps. The pumps are controlled by an 'Online Detection, Monitoring & Control System' which has inbuilt pH meter, ORP meter, Conductivity meter, Flourometer and uses these measured values to control the dosing pumps. System shall be as per specification.

AUTOMATIC TUBE CLEANING SYSTEM

SITC of Automatic Ball Tube Cleaning System consisting of sponge balls, collector, ball trap container, injector valve, control valves, microprocessor based control panel, all electricals, cabling, piping etc., as per specification and mounted in a compact skid - Suitable for 800TR Centrifugal Chiller

SITC of Automatic Ball Tube Cleaning System consisting of sponge balls, collector, ball trap container - 2 Nos, injector valve, control valves, microprocessor based control panel, all electricals, cabling, piping etc., as per specification and mounted in a compact skid. - Suitable for connecting and operation with 2 x 400TR Screw Chillers

SITC of Automatic Ball Tube Cleaning System consisting of sponge balls, collector, ball trap container, injector valve, control valves, microprocessor based control panel, all electricals, cabling, piping etc., as per specification and mounted in a compact skid - Suitable for 400TR Screw Chiller

ELECTROLYTIC WATER TREATMENT SYSTEM

SITC of Electrolytic water treatment system consisting of Electrolytic Reactor vessel containing anode and cathode electrodes, pumps, pipework, valves, control system including blowdown control and microprocessor control panel as per specification all mounted on a compact skid. Pumps shall be rated for a total flow of 240USGPM.

BALANCING

Carrying out balancing of Chilled water and condenser water flow using balancing valves in conjunction with computerized balancing equipment, temporary ultrasonic flow meters and submitting report. Balancing for chilled water would involve providing temporary loops with pressure gauges near tap off for each building, throttling the isolation valve to simulate pressure drop of pipework inside building and AHU and then carryout the balancing work.

ELECTRICAL

LT PANELS

Supply, Installation, Testing and Commissioning of Indoor type LT Switchboards, Floor mounting type, Bottom/Top entry. Refer enclosed SLD

Refer standard : IS 13947, 8623(part-1)

Enclosure: Compartmentalized Single front CRCA

Doors:2mm Body:2mm Gland:3mm covers and partitions:1.6mm

IP class:IP54 for Indoor/IP55 with weather proof enclosure for outdoor

Bus bars: Electrolytic grade conductivity as per standard IS 5082. Aluminium with current density not exceeding 0.7A/Sqmm.

Bus bar Material: As per SLD

Bus bar suppotrs: DMC/FRP/SMC

Bus bar joints: Shrouded/Tinned

Breakers: Thermal Magnetic type MCCB otherwise as specified

Protection releases: As per SLD (Adjustable over current & short circuit unless otherwise specified)

Ics=Icu for all breakers

Utilization category: All MCCB/ACB's shall be Cat: A except ACB's for Ltg & raw power input distribution panel shall be with Cat: B .

Louvers:Busbar chamber shall have louvers with fine mesh(Compatible with IP65) inside

Shade: Epoxy powder coated RAL 7032

Design: Modular Form 4B type-6 construction with common cable chambers. No live parts allowed in cable chambers.

Cable entry: As per site condition

SPD should have N/O contact for remote indication with on lndication lamp

Bus bar insulation: The bus bar shall be covered with heat shrinkable PVC sleeves at all non contact points in colour of red, yellow, blue and black and the arranged in accordance with IS-5578

PARCEL-1 PANEL (IP-55)- Near ESB SS

A) Incomer : 1No

2500 A, 4P, 50kA, MDO Motorized ACB equipped with integral Current Transformers and self powered Microprocessor based Protection Relay having variable settings for Overcurrent, Short Circuit and Earth Fault with shunt trip coil, necessary time delay settings and measurement & indication of various parameters, memory log and self diagnostic features interfaced through LCD display (continuously ON) window and suitable BMS connectivity. Line item shall inculde door interlock connection in such that the feeder door is not openable till the ACB is in off conditions.

B) Indication & Metering:

1 Sets of R,Y,B phase indicating lights (LED-TYPE) controlled with control fuse's and breaker ON / OFF / TRIP indications. 1 Sets of 3 phase, 4 wire,2500A/5A, Digital flush type Class-I accuracy multifunction meter with RS485 modbus connectivity . 1 Nos. 2500A/5A, Class-I, 5VA burden moulded CT's.

C) Busbar:

2500 A, 4P, 50KA Aluminium Busbar Chamber for the entire length of the Panel as per specification

1set of 50 KA SPD ( SPD shall be with potential free contact ) class B+C for three phase - with EOL LED indication along with suitable fuses

D) Outgoings :

1000 Amps TPN TMD based MCCB with Manual Closing Mechanism of 50 KA Short Circuit Rating, with O/L and S/C Protection With ON,OFF,TRIP Indicators- 1Nos

800 Amps TPN TMD based MCCB with Manual Closing Mechanism of 50 KA Short Circuit Rating, with O/L and S/C Protection With ON,OFF,TRIP Indicators-3Nos

630 Amps TPN TMD based MCCB with Manual Closing Mechanism of 50 KA Short Circuit Rating, with O/L and S/C Protection With ON,OFF,TRIP Indicators- 1Nos

400 Amps TPN TMD based MCCB with Manual Closing Mechanism of 50 KA Short Circuit Rating, with O/L and S/C Protection With ON,OFF,TRIP Indicators- 2Nos

250 Amps TPN TMD based MCCB with Manual Closing Mechanism of 50 KA Short Circuit Rating, with O/L and S/C Protection With ON,OFF,TRIP Indicators- 2Nos

160 Amps TPN TMD based MCCB with Manual Closing Mechanism of 50 KA Short Circuit Rating, with O/L and S/C Protection With ON,OFF,TRIP Indicators- 1Nos

40 Amps TPN TMD MCCB with Manual Closing Mechanism of 50 KA Short Circuit Rating, with O/L and S/C Protection With Shunt trip coli & ON,OFF,TRIP Indicators- 1Nos

25 Amps TPN TMD MCCB with Manual Closing Mechanism of 50 KA Short Circuit Rating, with O/L and S/C Protection With ON,OFF,TRIP Indicators- 1Nos

16 Amps TPN TMD MCCB with Manual Closing Mechanism of 50 KA Short Circuit Rating, with O/L and S/C Protection With ON,OFF,TRIP Indicators- 2Nos

IGBT based Active Harmonic filter technology: 3 level topology; Efficiency >97% certified by CPRI : High power IGBT based stacks with complete forced cooling arrangement. 320A, 360 V to 440 V, 3ph 4 Wire, 50 Hz. Each power module shall have its own independent set of semiconductor fuse for IGBT protection. MCCB & input surge suppression for incoming protection shall be included. Constructed on metal panel with minimum IP 20, suitable for indoor installations.System shall have Multiple filter units for parallel connection to achieve total current requirements for combined power factor correction and harmonic mitigation. AHF shall be with touch screen HMI, with true RMS readout & FFT analysis and diagnostics.

PRIMARY PUMP PANEL PARCEL-1 (IP-55)-Near ESB SS

A) Incomer : 1No

160 AMPS,4P, TMD based MCCB with Manual Closing Mechanism of 36 KA Short Circuit Rating with O/L and S/C Protection, Earth fault and Neutral current protection.(Electrical and Mechanical interlock between both the incomers)with shunt coil.

B) Indication & Metering:

1 Sets of R,Y,B phase indicating lights (LED-TYPE) controlled with control fuse's and breaker ON / OFF / TRIP indications. 1 Sets of 3 phase, 4 wire,160A/5A, Digital flush type Class-I accuracy multifunction meter with RS485 modbus connectivity ( PM5310 or equivalent). 1 Nos. 160A/5A, Class-I, 5VA burden moulded CT's.

C) Busbar:

160 A, 4P, 36KA Aluminium Busbar Chamber for the entire length of the Panel as per specification

50 KA SPD ( SPD shall be with potential free contact ) class B+C for three phase - with ON LED indication along with suitable fuses-

D) Outgoings :

40 Amps TPN TMD MCCB with Manual Closing Mechanism of 36 KA Short Circuit Rating, with O/L and S/C Protection With ON,OFF,TRIP Indicators- 3Nos

SECONDARY PUMP PANEL PARCEL-1 & 2 (IP-55) -Near ESB SS

A) Incomer : 1No

250 AMPS,4P, TMD based MCCB with Manual Closing Mechanism of 36 KA Short Circuit Rating with O/L and S/C Protection, Earth fault and Neutral current protection.(Electrical and Mechanical interlock between both the incomers)with shunt coil.

B) Indication & Metering:

1 Sets of R,Y,B phase indicating lights (LED-TYPE) controlled with control fuse's and breaker ON / OFF / TRIP indications. 1 Sets of 3 phase, 4 wire,250A/5A, Digital flush type Class-I accuracy multifunction meter with RS485 modbus connectivity ( PM5310 or equivalent). 1 Nos. 250A/5A, Class-I, 5VA burden moulded CT's.

C) Busbar:

250 A, 4P, 36KA Aluminium Busbar Chamber for the entire length of the Panel as per specification

50 KA SPD ( SPD shall be with potential free contact ) class B+C for three phase - with ON LED indication along with suitable fuses-

D) Outgoings :

40 Amps TPN TMD MCCB with Manual Closing Mechanism of 36 KA Short Circuit Rating, with O/L and S/C Protection With ON,OFF,TRIP Indicators- 1Nos

80 Amps TPN TMD MCCB with Manual Closing Mechanism of 36 KA Short Circuit Rating, with O/L and S/C Protection With ON,OFF,TRIP Indicators- 2Nos

Compartment with Pump Logic Controller capable of controlling each motor VFD by pre-programmed logic as per specification with necessary sofware. Necessary Protection, power supply units, terminal blocks to be considered-1Nos

PARCEL-2 PANEL (IP-55)-MSB SS

A) Incomer : 1No

2500 A, 4P, 50kA, MDO Motorized ACB equipped with integral Current Transformers and self powered Microprocessor based Protection Relay having variable settings for Overcurrent, Short Circuit and Earth Fault with shunt trip coil, necessary time delay settings and measurement & indication of various parameters, memory log and self diagnostic features interfaced through LCD display (continuously ON) window and suitable BMS connectivity. Line item shall inculde door interlock connection in such that the feeder door is not openable till the ACB is in off conditions.

B) Indication & Metering:

1 Sets of R,Y,B phase indicating lights (LED-TYPE) controlled with control fuse's and breaker ON / OFF / TRIP indications. 1 Sets of 3 phase, 4 wire,2500A/5A, Digital flush type Class-I accuracy multifunction meter with RS485 modbus connectivity . 1 Nos. 2500A/5A, Class-I, 5VA burden moulded CT's.

C Busbar:

2500 A, 4P, 50KA Aluminium Busbar Chamber for the entire length of the Panel as per specification

1et of 50 KA SPD ( SPD shall be with potential free contact ) class B+C for three phase - with EOL LED indication along with suitable fuses

D) Outgoings :

1000 Amps TPN TMD based MCCB with Manual Closing Mechanism of 50 KA Short Circuit Rating, with O/L and S/C Protection With ON,OFF,TRIP Indicators- 1Nos

800 Amps TPN TMD based MCCB with Manual Closing Mechanism of 50 KA Short Circuit Rating, with O/L and S/C Protection With ON,OFF,TRIP Indicators-3Nos

630 Amps TPN TMD based MCCB with Manual Closing Mechanism of 50 KA Short Circuit Rating, with O/L and S/C Protection With ON,OFF,TRIP Indicators- 1Nos

400 Amps TPN TMD based MCCB with Manual Closing Mechanism of 50 KA Short Circuit Rating, with O/L and S/C Protection With ON,OFF,TRIP Indicators- 1Nos

250 Amps TPN TMD based MCCB with Manual Closing Mechanism of 50 KA Short Circuit Rating, with O/L and S/C Protection With ON,OFF,TRIP Indicators- 2Nos

160 Amps TPN TMD based MCCB with Manual Closing Mechanism of 50 KA Short Circuit Rating, with O/L and S/C Protection With ON,OFF,TRIP Indicators- 1Nos

40 Amps TPN TMD MCCB with Manual Closing Mechanism of 50 KA Short Circuit Rating, with O/L and S/C Protection With Shunt trip coli & ON,OFF,TRIP Indicators- 1Nos

25 Amps TPN TMD MCCB with Manual Closing Mechanism of 50 KA Short Circuit Rating, with O/L and S/C Protection With ON,OFF,TRIP Indicators- 1Nos

16 Amps TPN TMD MCCB with Manual Closing Mechanism of 50 KA Short Circuit Rating, with O/L and S/C Protection With ON,OFF,TRIP Indicators- 2Nos

IGBT based Active Harmonic filter technology: 3 level topology; Efficiency >97% certified by CPRI : High power IGBT based stacks with complete forced cooling arrangement. 300A, 360 V to 440 V, 3ph 4 Wire, 50 Hz. Each power module shall have its own independent set of semiconductor fuse for IGBT protection. MCCB & input surge suppression for incoming protection shall be included. Constructed on metal panel with minimum IP 20, suitable for indoor installations.System shall have Multiple filter units for parallel connection to achieve total current requirements for combined power factor correction and harmonic mitigation. AHF shall be with touch screen HMI, with true RMS readout & FFT analysis and diagnostics.

PRIMARY PUMP PANEL PARCEL-2 (IP-55))-MSB SS

A) Incomer : 1No

160 AMPS,4P, TMD based MCCB with Manual Closing Mechanism of 36 KA Short Circuit Rating with O/L and S/C Protection, Earth fault and Neutral current protection.(Electrical and Mechanical interlock between both the incomers)with shunt coil.

B) Indication & Metering:

1 Sets of R,Y,B phase indicating lights (LED-TYPE) controlled with control fuse's and breaker ON / OFF / TRIP indications. 1 Sets of 3 phase, 4 wire,160A/5A, Digital flush type Class-I accuracy multifunction meter with RS485 modbus connectivity . 1 Nos. 160A/5A, Class-I, 5VA burden moulded CT's.

C) Busbar:

160 A, 4P, 36KA Aluminium Busbar Chamber for the entire length of the Panel as per specification

50 KA SPD ( SPD shall be with potential free contact ) class B+C for three phase - with ON LED indication along with suitable fuses-

D) Outgoings :

40 Amps TPN TMD MCCB with Manual Closing Mechanism of 36 KA Short Circuit Rating, with O/L and S/C Protection With ON,OFF,TRIP Indicators- 3Nos

PARCEL-3 PANEL (IP-55)-Near BSB SS

A) Incomer : 1No

2000 A, 4P, 50kA, MDO Motorized ACB equipped with integral Current Transformers and self powered Microprocessor based Protection Relay having variable settings for Overcurrent, Short Circuit and Earth Fault with shunt trip coil, necessary time delay settings and measurement & indication of various parameters, memory log and self diagnostic features interfaced through LCD display (continuously ON) window and suitable BMS connectivity. Line item shall inculde door interlock connection in such that the feeder door is not openable till the ACB is in off conditions.

B) Indication & Metering:

1 Sets of R,Y,B phase indicating lights (LED-TYPE) controlled with control fuse's and breaker ON / OFF / TRIP indications. 1 Sets of 3 phase, 4 wire,2000A/5A, Digital flush type Class-I accuracy multifunction meter with RS485 modbus connectivity . 1 Nos. 2000A/5A, Class-I, 5VA burden moulded CT's.

C) Busbar:

2000 A, 4P, 50KA Aluminium Busbar Chamber for the entire length of the Panel as per specification

1set of 50 KA SPD ( SPD shall be with potential free contact ) class B+C for three phase - with EOL LED indication along with suitable fuses.

D) Outgoings :

1000 Amps TPN TMD based MCCB with Manual Closing Mechanism of 50 KA Short Circuit Rating, with O/L and S/C Protection With ON,OFF,TRIP Indicators- 1Nos

800 Amps TPN TMD based MCCB with Manual Closing Mechanism of 50 KA Short Circuit Rating, with O/L and S/C Protection With ON,OFF,TRIP Indicators-2Nos

630 Amps TPN TMD based MCCB with Manual Closing Mechanism of 50 KA Short Circuit Rating, with O/L and S/C Protection With ON,OFF,TRIP Indicators- 1Nos

400 Amps TPN TMD based MCCB with Manual Closing Mechanism of 50 KA Short Circuit Rating, with O/L and S/C Protection With ON,OFF,TRIP Indicators- 2Nos

250 Amps TPN TMD based MCCB with Manual Closing Mechanism of 50 KA Short Circuit Rating, with O/L and S/C Protection With ON,OFF,TRIP Indicators- 1Nos

160 Amps TPN TMD based MCCB with Manual Closing Mechanism of 50 KA Short Circuit Rating, with O/L and S/C Protection With ON,OFF,TRIP Indicators- 2Nos

40 Amps TPN TMD MCCB with Manual Closing Mechanism of 50 KA Short Circuit Rating, with O/L and S/C Protection With Shunt trip coli & ON,OFF,TRIP Indicators- 1Nos

25 Amps TPN TMD MCCB with Manual Closing Mechanism of 50 KA Short Circuit Rating, with O/L and S/C Protection With ON,OFF,TRIP Indicators- 1Nos

16 Amps TPN TMD MCCB with Manual Closing Mechanism of 50 KA Short Circuit Rating, with O/L and S/C Protection With ON,OFF,TRIP Indicators- 2Nos

IGBT based Active Harmonic filter technology: 3 level topology; Efficiency >97% certified by CPRI : High power IGBT based stacks with complete forced cooling arrangement. 250A, 360 V to 440 V, 3ph 4 Wire, 50 Hz. Each power module shall have its own independent set of semiconductor fuse for IGBT protection. MCCB & input surge suppression for incoming protection shall be included. Constructed on metal panel with minimum IP 20, suitable for indoor installations.System shall have Multiple filter units for parallel connection to achieve total current requirements for combined power factor correction and harmonic mitigation. AHF shall be with touch screen HMI, with true RMS readout & FFT analysis and diagnostics.

PRIMARY PUMP PANEL PARCEL-3 (IP-55)-Near BSB SS

A) Incomer : 1No

160 AMPS,4P, TMD based MCCB with Manual Closing Mechanism of 36 KA Short Circuit Rating with O/L and S/C Protection, Earth fault and Neutral current protection.(Electrical and Mechanical interlock between both the incomers)with shunt coil.

B) Indication & Metering:

1 Sets of R,Y,B phase indicating lights (LED-TYPE) controlled with control fuse's and breaker ON / OFF / TRIP indications. 1 Sets of 3 phase, 4 wire,160A/5A, Digital flush type Class-I accuracy multifunction meter with RS485 modbus connectivity. 1 Nos. 160A/5A, Class-I, 5VA burden moulded CT's.

C) Busbar:

160 A, 4P, 36KA Aluminium Busbar Chamber for the entire length of the Panel as per specification

50 KA SPD ( SPD shall be with potential free contact ) class B+C for three phase - with ON LED indication along with suitable fuses-

D) Outgoings :

40 Amps TPN TMD MCCB with Manual Closing Mechanism of 36 KA Short Circuit Rating, with O/L and S/C Protection With ON,OFF,TRIP Indicators- 3Nos

SECONDARY PUMP PANEL PARCEL-3(IP-55)-Near BSB SS

A) Incomer : 1No

250 AMPS,4P, TMD based MCCB with Manual Closing Mechanism of 36 KA Short Circuit Rating with O/L and S/C Protection, Earth fault and Neutral current protection.(Electrical and Mechanical interlock between both the incomers)with shunt coil.

B) Indication & Metering:

1 Sets of R,Y,B phase indicating lights (LED-TYPE) controlled with control fuse's and breaker ON / OFF / TRIP indications. 1 Sets of 3 phase, 4 wire,250A/5A, Digital flush type Class-I accuracy multifunction meter with RS485 modbus connectivity . 1 Nos. 250A/5A, Class-I, 5VA burden moulded CT's.

C) Busbar:

250 A, 4P, 36KA Aluminium Busbar Chamber for the entire length of the Panel as per specification

50 KA SPD ( SPD shall be with potential free contact ) class B+C for three phase - with ON LED indication along with suitable fuses-

D) Outgoings :

40 Amps TPN TMD MCCB with Manual Closing Mechanism of 36 KA Short Circuit Rating, with O/L and S/C Protection With ON,OFF,TRIP Indicators- 1Nos

63 Amps TPN TMD MCCB with Manual Closing Mechanism of 36 KA Short Circuit Rating, with O/L and S/C Protection With ON,OFF,TRIP Indicators- 2Nos

Compartment with Pump Logic Controller capable of controlling each motor VFD by pre-programmed logic as per specification with necessary sofware. Necessary Protection, power supply units, terminal blocks to be considered-1Nos

PARCEL-4 PANEL (IP-55)- NAC-II SS

A) Incomer : 1No

1250 A, 4P, 50kA, MDO Motorized ACB equipped with integral Current Transformers and self powered Microprocessor based Protection Relay having variable settings for Overcurrent, Short Circuit and Earth Fault with shunt trip coil, necessary time delay settings and measurement & indication of various parameters, memory log and self diagnostic features interfaced through LCD display (continuously ON) window and suitable BMS connectivity. Line item shall inculde door interlock connection in such that the feeder door is not openable till the ACB is in off conditions.

B) Indication & Metering:

1 Sets of R,Y,B phase indicating lights (LED-TYPE) controlled with control fuse's and breaker ON / OFF / TRIP indications. 1 Sets of 3 phase, 4 wire,1250A/5A, Digital flush type Class-I accuracy multifunction meter with RS485 modbus connectivity . 1 Nos. 1250A/5A, Class-I, 5VA burden moulded CT's.

C) Busbar:

1250 A, 4P, 50KA Aluminium Busbar Chamber for the entire length of the Panel as per specification

1set of 50 KA SPD ( SPD shall be with potential free contact ) class B+C for three phase - with EOL LED indication along with suitable fuses

D) Outgoings :

1000 Amps TPN TMD based MCCB with Manual Closing Mechanism of 50 KA Short Circuit Rating, with O/L and S/C Protection With ON,OFF,TRIP Indicators- 1Nos

630 Amps TPN TMD based MCCB with Manual Closing Mechanism of 50 KA Short Circuit Rating, with O/L and S/C Protection With ON,OFF,TRIP Indicators- 1Nos

250 Amps TPN TMD based MCCB with Manual Closing Mechanism of 50 KA Short Circuit Rating, with O/L and S/C Protection With ON,OFF,TRIP Indicators- 1Nos

100 Amps TPN TMD based MCCB with Manual Closing Mechanism of 50 KA Short Circuit Rating, with O/L and S/C Protection With ON,OFF,TRIP Indicators- 2Nos

40 Amps TPN TMD MCCB with Manual Closing Mechanism of 50 KA Short Circuit Rating, with O/L and S/C Protection With Shunt trip coli & ON,OFF,TRIP Indicators-1Nos

25 Amps TPN TMD MCCB with Manual Closing Mechanism of 50 KA Short Circuit Rating, with O/L and S/C Protection With ON,OFF,TRIP Indicators- 1Nos

16 Amps TPN TMD MCCB with Manual Closing Mechanism of 50 KA Short Circuit Rating, with O/L and S/C Protection With ON,OFF,TRIP Indicators- 2Nos

IGBT based Active Harmonic filter technology: 3 level topology; Efficiency >97% certified by CPRI : High power IGBT based stacks with complete forced cooling arrangement. 150A, 360 V to 440 V, 3ph 4 Wire, 50 Hz. Each power module shall have its own independent set of semiconductor fuse for IGBT protection. MCCB & input surge suppression for incoming protection shall be included. Constructed on metal panel with minimum IP 20, suitable for indoor installations.System shall have Multiple filter units for parallel connection to achieve total current requirements for combined power factor correction and harmonic mitigation. AHF shall be with touch screen HMI, with true RMS readout & FFT analysis and diagnostics.

SECONDARY PUMP PANEL PARCEL-4 (IP-55)-NAC-II SS

A) Incomer : 1No

160 AMPS,4P, TMD based MCCB with Manual Closing Mechanism of 36 KA Short Circuit Rating with O/L and S/C Protection, Earth fault and Neutral current protection.(Electrical and Mechanical interlock between both the incomers)with shunt coil.

B) Indication & Metering:

1 Sets of R,Y,B phase indicating lights (LED-TYPE) controlled with control fuse's and breaker ON / OFF / TRIP indications. 1 Sets of 3 phase, 4 wire,160A/5A, Digital flush type Class-I accuracy multifunction meter with RS485 modbus connectivity ( PM5310 or equivalent). 1 Nos. 160A/5A, Class-I, 5VA burden moulded CT's.

C) Busbar:

160 A, 4P, 36KA Aluminium Busbar Chamber for the entire length of the Panel as per specification

50 KA SPD ( SPD shall be with potential free contact ) class B+C for three phase - with ON LED indication along with suitable fuses-

D) Outgoings :

40 Amps TPN TMD MCCB with Manual Closing Mechanism of 36 KA Short Circuit Rating, with O/L and S/C Protection With ON,OFF,TRIP Indicators- 1Nos

63 Amps TPN TMD MCCB with Manual Closing Mechanism of 36 KA Short Circuit Rating, with O/L and S/C Protection With ON,OFF,TRIP Indicators- 2Nos

Compartment with Pump Logic Controller capable of controlling each motor VFD by pre-programmed logic as per specification with necessary sofware. Necessary Protection, power supply units, terminal blocks to be considered-1Nos

DISTRIBUTION BOARDS

Supply, Installation, Testing and Commissioning of MCB Distribution board as per approved installation dwgs.

Reference Standard: IS 8623

Enclosure:1.2mm CRCA Sheet Steel, Powder Coated

DB type: Horizontal, 7 Segment for UPS DB's, Lighting, Emergency Lighting & Raw power or as specified.

Door : Double Door

Protection : IP 42

Cable Entry : Top & Bottom

For UPS distribution ELCB's shall be harmonic resistant (SI Series)

Bus bar : Shall be tinned Copper and 200% rating for UPS DB Neutral Link

MCB's : 10kA 'C' Curve for Lighting & Raw power, 10kA 'D' Curve for UPS Distribution

AC DB- 4WAY VTPN DB with shunt trip

Supply, erection, testing and commissioning of VTPN MCB DB double door type, IP 42 powder coated VERTICAL DB comprising of "C" curve MCB's

Incomer

1 No - 40 Amps 4P 10kA MCB

Outgoings

3Nos - 16A TP 10kA MCB

3Nos - 40A SP 10kA MCB

Including all interconnections & accessories etc as reqd

LT CABLES & TERMINATIONS

Supply, Laying, Testing and Commissioning of stranded XLPE/PVC insulated, FRLS Armoured/Unarmoured/Flexible, Aluminium/Copper conductor, laid over Galvanized or MS supports/in excavated Trench/in duct/fixing on walls including Galvanized clamping support to the cable as per approved installation dwg. Circuit identification tag made of stainless steel should be attached with the concerned cable alongwith the test report of following sizes of cable to be submitted by the contractor at the time of delivery of material at site

Refer Indian standard

Specification: IS 1554, 7098, 5831, 3975, 694(Earthing cables)

Installation: IS1255 & IS732

Multicore/Single core Armoured/Un-armoured cable

Insulation: XLPE above 25Sqmm and Class A PVC below 25Sqmm otherwise as specified

Inner sheath: Extruded PVC only for Multicore

Outer sheath: Extruded Type ST2 PVC

PVC Cable shall be a tough outer sheathing of PVC FRLS insulating material in standard colours.

Voltage grade:1100Volts

Armoure: Galvanized Steel strip/Wire for multicore

Non Magnetic Aluminum Wire/Strip for Single core

Power Cables(Aluminum cables)

4C x 400 Sq.mm XLPE AR Al

4C x 150 Sq.mm XLPE AR Al

4C x 120 Sq.mm XLPE AR Al

4C x 95 Sq.mm XLPE AR Al

4C x 25 Sq.mm XLPE AR Al

4C x 16 Sq.mm XLPE AR Al

4C x 10 Sq.mm XLPE AR Al

3C x 50 Sq.mm XLPE AR Al

3C x 35 Sq.mm XLPE AR Al

3C x 25 Sq.mm XLPE AR Al

3C x 16 Sq.mm XLPE AR Al

Power Cables(Copper cables)

3C x 6 Sq.mm XLPE AR CU

2C x 6 Sq.mm PVC UN AR CU

Single Core Copper Flexible cables(Cost shall include necessary glands, lugs and termination)

Insulation: XLPE above 25Sqmm and Class A PVC below 25Sqmm otherwise as specified

Specification: Confirm to BS 7211/ IS 7098 for power distribution, IS 694 for earthing cables

Installation: IS1255 & IS732

1Cx300SQ.MM

LT CABLE TERMINATION

Supply, Installation, Testing and Commissioning of Compression type cable gland, Aluminium sockets for Aluminium cables / copper sockets for copper cables, insulation tape, anti corrosive paste, brass clamps for gland earthing with 14 SWG copper wire to connect to nearest earth flat.

Refer Standard: IS 12943 for single compression, BS 6121 for Double compression(NA)

Gland type : Brass with nickel plated (Double compression)

Compression : Double

Sealing Ring : Natural rubber for indoor, Neoprene for Outdoor

Wherever copper cable connect to GI strips, the lugs shall be tinned copper lugs fitted using shake proof assembly screws, washers and 'nylock' or similar nuts.

Power Cables(Aluminum cables)

4C x 400 Sq.mm XLPE AR Al

4C x 150 Sq.mm XLPE AR Al

4C x 120 Sq.mm XLPE AR Al

4C x 95 Sq.mm XLPE AR Al

4C x 25 Sq.mm XLPE AR Al

4C x 16 Sq.mm XLPE AR Al

4C x 10 Sq.mm XLPE AR Al

3C x 50 Sq.mm XLPE AR Al

3C x 35 Sq.mm XLPE AR Al

3C x 25 Sq.mm XLPE AR Al

3C x 16 Sq.mm XLPE AR Al

Power Cables(Copper cables)

4C x 25 Sq.mm XLPE AR CU

4C x 16 Sq.mm XLPE AR CU

4C x 10 Sq.mm XLPE AR CU

4C x 6 Sq.mm PVC AR CU

3C x 6 Sq.mm XLPE AR CU

3C x 10 Sq.mm PVC AR CU

2C x 6 Sq.mm PVC UN AR CU

CABLE TRAYS AND WIREWAYS

Supply and Installation of the following sizes of Cable trays suspended from the ceiling or Along the wall or in trench or on floor,

Refer standard: IS 1079 & 513

Material : GI / MS

Finish: for GI - Pre Galvanized for indoor & Hot dip galvanized for Outdoor (NA)

Finish: for MS - For indoior only - Powder coated ( colour as per architect choice)

Thickness: 2.5mm

Type: Ladder or Perforated or Solid

Rung Spacing: 300mm

Rung width: 35mm

Supports: Up to 300mm wide using Hi-tech Rod and above 300mm wide using MS angle supports with anticorrosive paint at an intervals of 500mm.

Accessories: Couplers, Bends, Reducers, Tees, Cross junctions & End cap shall be considered. All these accessories shall be factory made and not fabricated at site by cutting and folding regular linear trays.

The trays installed on floor shall be mounted on 'C' clamp

CABLE TRAYS

100 mm x 50mm GI Ladder type

300 mm x 50mm GI Ladder type

450 mm x 50mm GI Ladder type

600 mm x 50mm GI Ladder type

750 mm x 50mm GI Ladder type

1000 mm x 50mm GI Ladder type

EARTHING SYSTEM

EARTHPITS

Supply, Installation, Testing and Commissioning of the Earth pits as per standard

Refer Standard: IS 3043. IE rules 1956

Electrode: Cast iron for Corrosive Soil. Galvanized Iron/Non-galvanized Steel for Non Corrosive soil

Plate Electrode: Copper

Application: 1) CI or GI pipe electrode for Equipment Earthing 2) Copper/GI/CI plate or tripolar for System Earthing or UPS neutral and clean earthing

Supplying, installing and connecting a Copper plate of size 600mm.x 600 mm.x 3 mm. at a depth of 3000 mm in an earth pit of 700 x 700 x 3500 mm. filled with salt and charcoal mixed with sand in alternate layers 150 mm. each upto a height of 3000 mm. from bottom. Two copper flats of 25 x 6mm. shall be braced to this copper plate through out the overlaping length with the copper plate and brought to the surface of the earthpit. This copper flat shall have provision for connecting wires of flats as the case may be. A suitable size of 40 mm dia GI Pipe shall be provided uptil the bottom of the earth pit. This GI Pipe shall have provision for watering through funnel. A masonary strucutre shall be constructed to a depth of 450mm. and a heavy duty CI Cover shall be used to cover the pit. The cost of digging and back filling shall also be included . Sand, salt and charcoal are in the Contractor's scope.

EARTHSTRIPS

Supply, Installation on trays/in ground/on wall/in trench etc, Testing and Commissioning of the Earth strips as per installation standard IS 3043

Strips above ground: GI

Strips below groung: GI

Accessories: Welding for GI/MS, Brazing for Copper, GI nut bolts for connection at eqpt end/PVC sleeves for copper strips/Epoxy Insulated mounts shall be considered

75 x 06 mm - GI flat

50 x 06 mm - GI flat

25 x 06 mm - GI flat

8 SWG CU

MISCELLANEOUS & SAFETY ITEMS

SITC of 5 KVA ONLINE UPS 1PH/1PH with SMF VRLA Battery backup for on suitable size MS angle iron stand suitable for 10 min battery back up. (Make : Numeric/Emerson/Socomec/Eaton). UPS shall provide minimum 4.5KW power output. The UPS and Batteries would be located in non-airconditioned areas and shall be suitable for operation at ambients of upto 40 deg C. Battery autonomy test will have to be done by vendor using suitable heater banks as load to prove the capacity of battery.

SAFETY ITEMS

For Electrical rooms, UPS rooms, battery room etc

2mtrX1mtrX2mm thick Fire Rated PVC Insulated rubber Mats 1100V grade(As per IS: 15652:2006)

4.5 Kg CO2 type Fire Extinguishers

5 Kg ABC type Fire Extinguishers

Safety glasses

Caution Boards

First aid chart

First Aid kits

Hand gloves - 1100V grade

Miscellaneous

LEAK DETECTION CENTRAL UNIT

SITC of Microprocessor Control Unit for Leak Detection tape. The Control unit shall be able to monitor upto 6000 Rmt of tape for leaks and identify the precise location of leak and alert by means of an LCD/LED display and sounder. The processor unit shall also be capable of interfacing with a PC and display all the paramters and system health through an inbuilt web browser / software. Price to include for any software as required.

VENTILATION SYSTEM FOR PLANTROOMS

SITC of cabinet type fan unit, ceiling suspended type, consisting of MERV8 Pre filter section, DIDW fan/s, Motor, Drive package etc., as per specification. 3000CFM, 20mm ESP

SITC of 26G GI ductwork as per SMACNA standard for 1" static complete with all supports, gaskets, bolts, nuts, bends, transformation pieces, collars etc.,

SITC of Collar dampers out of aluminium, painted matt black

SITC of Aluminium extruded powdercoated grilles

SITC of Noise attenuators as per specification, 1.8m long.

SITC of aluminium powdercoated weather proof fresh air louvres with bird mesh.

PIPE MOUNTED DP SENSORS

SITC of pipe mounted DP sensors for connecting with Pump Logic Controller. DP Sensors shall be suitable for connectivity of cable lengths upto 750m between sensor and controller.

SITC of control cable for DP sensors connectivity with Pump Logic Controller

EXCAVATION & REFILLING OF TRENCHES

Excavation for pipe trenches in soft soil, suitable depth to ensure top of laid pipes is at least 750mm below surface, including dressing of sides lift upto 1.5 m, including getting out the excavated soil, refilling with sand and or good soil after laying of cable/ pipe etc in layers of 20 cm, ramming, watering and disposal of surplus excavated soil as directed, within a lead of 50 metres. Width of trench shall be suitable for running both supply and return chilled water piping inside the trench including necessary space for welding, jointing of insulation etc., Price also to include for dewatering the trenches if necessary.

Excavation for pipe trenches in hard rocks/bitumen roads, suitable depth to ensure top of pipes is at least 750mm below surface, including dressing of sides lift upto 1.5 m, including getting out the excavated soil, refilling with sand and or good soil after laying of cable/ pipe etc in layers of 20 cm, ramming, watering and disposal of surplus excavated soil as directed, within a lead of 50 metres. Width of trench shall be suitable for running both supply and return chilled water piping inside the trench including necessary space for welding, jointing of insulation etc., Price also to include for dewatering the trenches if necessary. Note: Bitumen / Cement Roads will be re-laid by client after refilling of soil by vendor.

HUME PIPES AT ROAD CROSSINGS

SITC of NP4 Concrete Reinforced Hume Pipes as per IS458 to be provided in Road crossings in the trench. Pipes to be complete with necessary collars etc., wherever jointing of pipes is required for the span.

700mm internal diameter

600mm internal diameter

500mm internal diameter

450mm internal diameter

ACOUSTIC INSULATION OF CHILLER PLANTROOM

SITC of acoustic insulation of plantroom by fixing 1.2m x 1.2m acoustic panels in walls/ceiling of Plantroom as per specification.

WATER SOFTENING PLANT

SITC of Water Softening Plant, Ion exchange type, Compact skid type, suitable for softening input water (treated STP water - test report enclosed) to a Total Hardness Level of maximum 100ppm and suitable for use in Cooling Tower as make up water. Make: Ion Exchange, Thermax System to consist of: a. FRP container with Na+ type resin b. HDPE brine tanks c. Pumps for brine(1W+1S) d. Submersible pump with SS impeller & shaft suitable for installation in UG raw water sump and capable of pumping water through the softener at the required flow rate to the UG treated water sump. e. Interconnecting pipework, pressure gauges and valves including automatic valves required for backwash and rinse operations f. Level sensors in both raw water and treated water tanks g. Control panel for automatic operation of Softener Plant with all necessary electrical & electronic controls, contactors, relays etc., and with potential free contacts for BMS connectivity. h. Necessary interconnecting power and control wiring.

Plant suitable for treating 1,80,000 Litres of water in 12 hours(including backwash and rinse operations)

Plant suitable for treating 1,40,000 Litres of water in 12 hours(including backwash and rinse operations)

Plant suitable for treating 1,00,000 Litres of water in 12 hours(including backwash and rinse operations)

SITC of Pump Booster system with submersible pumps, expansion vessel, pressure switch, starters, overload relays, all wiring, interconnecting GI piping , valves, strainer, NRV etc., for pumping water from treated water tanks to individual cooling tower makeup. Booster pumps shall be submersible type in 1W +1 S configuration with SS impeller and shaft. Flow rate of each pump shall be 5LPS at a head of 22m. Expansion vessel shall be of MS with EPDM rubber bellows, 200 litres capacity. Price to include all piping, pressure switches, wiring etc., Starter panel to be BMS compatible

SCHEDULE OF ANNUAL MAINTENANCE OF AIR CONDITIONING SYSTEM

Comprehensive Annual maintenance ( Routine & Preventive) and break down maintenance of high side & Low side of the Air Conditioning plant comprising of all the machinery & equipments installed in all above plant rooms & buildings for Five years subsequent to one year free maintenance warranty period as detailed in NIT para 25 of Technical Specification for HVAC System. ( Note: This item will not be considered for evaluation of lowest bidder)

AMC for 1st year

AMC for 2nd year

AMC for 3rd year

AMC for 4th year

AMC for 5th year

SCHEDULE OF OPERATION CONTRACT OF AIR CONDITIONING SYSTEM

Round the clock Operation contract of AC plant and allied equipments as supplied in the contract with suitable and sufficient number of Engineers/Technicains t for Six Years subsequent to handed over the plant o IIT Madras . ( Note: This item will not be considered for evaluation of lowest bidder)

AMC for 1st year

AMC for 2nd year

AMC for 3rd year

AMC for 4th year

AMC for 5th year

Bluestar Limited